[Xen-users] Still having trouble creating a VM using xm create

[Shabs <shabswork@xxxxxxxxxxx>]

Hi all.
 
 Could anyone assist in this issue?
 
 I've just built Fedora and installed Xen and booted fromits kernel.
 I have the priviledged domain:
 
 [root@localhost xen]# xm list
 Name                              ID Mem(MiB) VCPUs State  Time(s)
 Domain-0                           0      884     1 r-----   267.8
 
 When I run xm create, I get
 a new VM but it doesn't seem to hang around for long. I know its something to do with my "disk" entry in the config file "sr-config1"
 
 disk = [ 'phy:/dev/mapper/VolGroup00-LogVol01,hda1,w',
          'phy:/dev/mapper/VolGroup00-LogVol01,hda2,r' ]
 
 [root@localhost xen]# df -k
 Filesystem           1K-blocks      Used Available Use% Mounted on
 /dev/mapper/VolGroup00-LogVol00
                       16822672   7279916   8674404  46% /
 /dev/hda1               101086     20680     75187  22% /boot
 /dev/shm                480296         0    480296   0% /dev/shm
 /dev/hdc                 63736    
 63736         0 100% /media/cdrom
 
 [root@localhost xen]# ls -l /dev/mapper/VolGroup00-LogVol0*
 brw-rw----  1 root disk 254, 0 Apr 27 12:58 /dev/mapper/VolGroup00-LogVol00
 brw-rw----  1 root disk 254, 1 Apr 27 13:57 /dev/mapper/VolGroup00-LogVol01
 
 
 The output of the xm create command is as follows:
 
 [root@localhost xen]# xm create sr-config1 -c vmid=1
 Using config file "sr-config1".
 Started domain VM1
 Linux version 2.6.16-xen3_86.1_fc4 (rread@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.0.1 20050727 (Red Hat 4.0.1-5)) #1 SMP Thu Apr 13 08:26:52
 PDT 2006
 BIOS-provided physical RAM map:
  Xen: 0000000000000000 - 0000000004000000 (usable)
 0MB HIGHMEM available.
 72MB LOWMEM available.
 ACPI in unprivileged domain disabled
 IRQ lockup detection disabled
 Built 1 zonelists
 Kernel command line:  ip=:1.2.3.4:::vm1:eth0:dhcp root=/dev/mapper/VolGroup00-LogVol00 ro 4 VMID=1 usr=/dev/hda1
 Enabling fast FPU save and restore... done.
 Enabling unmasked SIMD FPU exception support... done.
 Initializing CPU#0
 PID hash table entries: 512 (order: 9, 8192 bytes)
 Xen reported: 2391.132 MHz processor.
 Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
 Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
 Software IO TLB disabled
 vmalloc area: c5000000-fb7fe000, maxmem 33ffe000
 Memory: 61016k/73728k available (2188k kernel code, 4452k reserved, 681k data, 168k init, 0k highmem)
 Checking if this processor honours the WP bit even in
 supervisor mode... Ok.
 Calibrating delay using timer specific routine.. 4785.76 BogoMIPS (lpj=23928814)
 Security Framework v1.0.0 initialized
 Capability LSM initialized
 Mount-cache hash table entries: 512
 CPU: Trace cache: 12K uops, L1 D cache: 8K
 CPU: L2 cache: 512K
 Checking 'hlt' instruction... OK.
 Brought up 1 CPUs
 migration_cost=0
 Grant table initialized
 NET: Registered protocol family 16
 Brought up 1 CPUs
 PCI: setting up Xen PCI frontend stub
 ACPI: Subsystem revision 20060127
 ACPI: Interpreter disabled.
 Linux Plug and Play Support v0.97 (c) Adam Belay
 xen_mem: Initialising balloon driver.
 usbcore: registered new driver usbfs
 usbcore: registered new driver hub
 PCI: System does not support PCI
 PCI: System does not support PCI
 IA-32 Microcode Update Driver: v1.14-xen <tigran@xxxxxxxxxxx>
 VFS: Disk quotas dquot_6.5.1
 Dquot-cache hash table entries: 1024 (order 0, 4096
 bytes)
 Initializing Cryptographic API
 io scheduler noop registered
 io scheduler anticipatory registered (default)
 io scheduler deadline registered
 io scheduler cfq registered
 PNP: No PS/2 controller found. Probing ports directly.
 i8042.c: No controller found.
 RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
 Xen virtual console successfully installed as tty1
 Event-channel device installed.
 blkif_init: reqs=64, pages=704, mmap_vstart=0xc3c00000
 netfront: Initialising virtual ethernet driver.
 Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
 ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
 Registering block device major 3
 ide-floppy driver 0.99.newide
 usbmon: debugfs is not available
 usbcore: registered new driver libusual
 mice: PS/2 mouse device common for all mice
 NET: Registered protocol family 2
 IP route cache hash table entries: 1024
 (order: 0, 4096 bytes)
 TCP established hash table entries: 4096 (order: 3, 32768 bytes)
 TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
 TCP: Hash tables configured (established 4096 bind 4096)
 TCP reno registered
 Initializing IPsec netlink socket
 NET: Registered protocol family 1
 NET: Registered protocol family 17
 NET: Registered protocol family 8
 NET: Registered protocol family 20
 Using IPI No-Shortcut mode
 VFS: Cannot open root device "mapper/VolGroup00-LogVol00" or unknown-block(0,0)
 Please append a correct "root=" boot option
 Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
  [root@localhost xen]# x, list
 bash: x,: command not found
 
 [root@localhost xen]# xm list
 Name                              ID Mem(MiB)
 VCPUs State  Time(s)
 Domain-0                           0      883     1 r-----   282.1
 VM1                                9       64     1 ------     0.2
 
 Running the same command after 10 secs:
 
 [root@localhost xen]# xm list
 Name                              ID
 Mem(MiB) VCPUs State  Time(s)
 Domain-0                           0      883     1 r-----   292.6
 
 Thanks.
 
 Shabs

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